JPH0745527Y2 - Adhesive tape for hemming - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION The present invention relates to an adhesive tape for finishing hem such as pants and skirts.

[0002]

2. Description of the Related Art Conventionally, as an adhesive tape for finishing a hem of this kind, for example, a positioning portion is provided at the center of a band-shaped cloth having a predetermined width, and the positioning section is left and the inner surface of the band-shaped cloth is thermoplastic. Tape with resin adhesive layer
No. 4302), a thread for thermal bonding is woven or knitted in zigzag on both sides of one side of the strip-shaped tape body, and a thread portion for stopping the valley portion of the thread for thermal bonding inside the tape body is used. A tape using a thermoplastic resin thread that melts at a temperature lower than that of the yarn for use (see Japanese Utility Model Publication No. 57-43847), or a plurality of rows of heat-soluble threads are inserted into the edge of the band-shaped cloth, and adjacent thread rows are water-soluble. There are known tapes (see Japanese Utility Model Publication No. 57-20627) which are connected with a flexible chain knitting yarn.

[0003]

However, of these, the former two tapes each have an adhesive layer or a thermoplastic resin thread, which exhibits adhesiveness when heated, on both sides of the strip-shaped cloth. Therefore, during heat-bonding treatment with an iron, etc.,
There is a problem that heat causes shrinkage, which causes abnormal shrinkage and warpage in the longitudinal direction, causing incomplete adhesion.

On the other hand, the latter tape, which is connected with a water-soluble chain-knitting yarn, is warped because the chain-knitting yarn of the water-soluble yarn is melted during thermal bonding and each row of the heat-soluble yarn is separated. Although it has few advantages, however, since the heat-soluble yarn is weft-inserted and is held by the chain knitting yarn in the lengthwise direction, it is held in place. The adhesive strength of the yarn is reduced and a large amount of heat-soluble yarn is required to obtain a sufficient adhesive effect. However, since the heat-fusible yarn has a drawback of being hardened by the heat-bonding treatment, there is a problem that it is difficult to use for hemming a thin slacks fabric or a soft slacks fabric.

In view of the above-mentioned circumstances, the present invention has found that the heat-fusible yarns are looped, prevent the pulling at the time of bonding, increase the heat-melting surface area, improve the adhesiveness, and improve the heat-melting property. The purpose is to eliminate the stiff surface after bonding by reducing the amount of yarn.

[0006]

In order to achieve the above object, in the present invention, a knitting yarn is knitted by one needle bar of a double Raschel machine to form a belt-like base cloth, and the other needle bar is formed. By knitting the heat-bonding yarn without exposing it on the surface of the base cloth to form a knitting loop structure by the heat-bonding thread on the back side of the base cloth. It was made to float on the back side of the cloth. In addition,
In the present invention, for convenience, the front surface and the back surface of the base cloth are, for convenience, the outer surface that comes into contact with the eyes during use and the hidden inner surface is the back surface.

Here, the heat-fusible yarn is a yarn having a relatively low melting point which is melted by heating with an iron or the like and exhibits adhesiveness, and is usually a thermoplastic synthetic fiber yarn such as low-melting nylon.

Further, the ground knitting yarn is folded back to connect the thermoplastic synthetic fiber yarn having a relatively high melting point and the chain knitting, which has a relatively high melting point, as compared with the heat-fusible yarn forming the chain knitting to form the base fabric. Includes both insert threads to be inserted.

The knitted loop structure on the back surface side of the base cloth formed by the heat-bonding yarn is generally formed on both side edge portions of the back surface of the belt-like base cloth over an appropriate width. In addition, one or a plurality of lines may be formed, and it is also possible to take various arrangements in consideration of the design effect, such as intermittently forming the intermediate part together with both side edge parts. Of course, it may be formed on the entire back surface.

[0010]

When the hem of trousers or the like is finished using the above-mentioned adhesive tape, first, the lower end of the trouser hem body is folded back inward, and the folded edge is brought into contact with the inner surface of the hem body. The adhesive tape is overlapped so as to straddle the folded-back portion of the abutting portion and the bottom body. Then, if the adhesive tape is properly aligned and processed and pressed from the surface of the adhesive tape body with an iron or a press, the heat-sealing yarn is melted and the upper edge side is the hem body, while the lower edge side is the folded piece. The hem body, the adhesive tape, and the folded piece are integrally bonded.

At this time, the heat-fusible yarn is knitted as a knitted loop, and since it is floated on the back surface of the base cloth, it exerts a good adhesive effect without causing any attraction at the time of bonding.

[0012]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is an external view showing an example of the adhesive tape according to the present invention, FIG. 2 is a view showing an example of the structure of the side edge portion of the adhesive tape using a heat-sealing thread, and FIG. 3 is the same structure. It is a partially enlarged view of a part of the knitting organization according to the configuration.

The adhesive tape 1 of the present invention is shown in FIG.
As shown in FIG. 3, the band-shaped base cloth 2 is formed by forming the adhesive portions 3 using heat-sealing yarns on both side edges of the band-shaped base cloth 2 with an appropriate width. Hemming adhesive tapes are known and not unique.

The present invention is characterized by the knitting structure of the base cloth 2 and the adhesive portion 3 in the adhesive tape 1 as described above.

That is, the adhesive tape 1 of the present invention is knitted using a double Russell machine.

The base fabric 2 is knitted together with the insertion yarn by one needle bar of the double Russell machine using synthetic fiber yarn having a relatively high melting point as compared with the heat fusion yarn, and the adhesive portion 3
Is knitted by the other needle bar of the double Russell machine by using a heat-fusible yarn which is fused to the base cloth 2 by heating an iron or the like during use, such as a nylon fiber yarn having a relatively low melting point, and exhibits adhesiveness. It

2 and 3 show an example of the basic structure of the adhesive tape of the present invention knitted by the double Russell machine, wherein L ₁ , L ₂ and L ₃ represent the yarn introducing process of individual knitting yarns,
The numbers 1 to 3 indicate the arrangement positions of the guide bars for passing the knitting yarns, but here, for convenience, the stitch rows are shown.
That is, L ₁ is one of the needle bars of the double russel machine, in the figure, a chain stitch row consisting of a base knitting yarn a such as a polyester fiber yarn knitted by a back needle B and forming a belt-like base fabric 2, and L ₂ is the above-mentioned The other side of the needle bar of the double russel machine, in the figure, is a chain stitch row composed of a heat fusion yarn b such as a low melting point nylon thread knitted by a front needle F, and the base fabric is formed by the chain stitch row L ₁ of the ground knitting yarn a. 2 is formed, a chain stitch row L ₂ composed of the above-mentioned heat-sealing yarn b is knitted on the bonding portion 3 by the other needle bar,
As shown by, the heat-sealing yarn b crosses the stitches of the ground knitting yarn a on the inner surface of the ground knitting yarn sequence L ₁ between the two stitch rows, so that the chain stitch row L ₂ of the heat-sealing yarn forms the base fabric 2 It is connected to the stitch row L ₁ of the base knitting yarn a without being exposed on the surface. Therefore, the heat-fusible yarn b has a knitted loop shape and appears as a state of floating on the back surface side of the base fabric 2.

In addition, c is a ground knitting yarn a that forms the base fabric 2.
That of to the chain stitch row L ₁ as ground knitting yarn inserting yarn for connecting the chain stitch row L ₁ in a row L ₃ is inserted by folding the weft direction, linking the chain stitch row L ₁ to each other The base fabric 2 is formed with the chain stitch row L ₁ .

The synthetic fiber yarns used for the ground knitting yarns a and c may have the same thickness as the heat fusion yarn b, but the heat fusion yarn is thinner than the ground knitting yarn. It is possible to use a yarn, and normally, a three-ply yarn having a single yarn of about 75 to 100 denier as the heat-sealing yarn and a yarn of 75 to 100 denier as the base knitting yarn is used.

FIGS. 4 and 5 show another embodiment of the knitting structure according to the adhesive tape of the present invention. In FIG. 4, two kinds of insertion yarns c and d which are inserted in opposite directions are used. The chains L ₃ and L ₄ are connected to each other by folding back between the chain stitch rows L ₁ of the ground knitting yarn a. In addition, in FIG.
In order to reinforce the chain stitch row L ₁ of the ground knitting yarn a in FIG. 4, the chain stitch row L ₃ is formed of the same ground knitting yarn a. Note that L ₄ and L ₅ are yarn strings formed by the insertion yarns c ′ and d ′. Such reinforcement may be carried out over the entire surface of the base fabric, but may be carried out only at the stitch row L ₂ of the heat-sealing yarn b. By doing so, the stitches of the heat-sealing yarn b can be easily piled. The advantage that can be obtained is obtained. Alternatively, the chain stitch of the heat-sealing yarn can be obtained by reversely hooking the chain stitch of the heat-sealing yarn as means for making the chain stitch of the heat-sealing yarn into a pile shape.

It is needless to say that various modifications other than the above-described embodiments are allowed without departing from the object of the present invention. And, in each of these, the heat-bonding yarn b forming a knitting loop floating on the back surface side of the base fabric 2 is melted by heating during use, such as an iron, and exerts adhesiveness, but is inserted linearly as in the conventional case. Unlike the heat-sealing yarn, the contraction does not spread to the base fabric, and therefore, no twitching occurs and a good hem finish can be performed.

[0023]

[Effects of the Invention] As described above, the present invention knits a belt-shaped base cloth with one needle bar of the double russel machine, and knits a heat-fusible yarn that exhibits adhesiveness by heating when used with the other needle bar. This is a hem-up adhesive tape in which the loop-shaped heat-sealing yarn is floated only on one side of the base fabric, and the heat-sealing yarn is knitted in the loop only on the back side without being exposed on the surface of the base fabric and floated. Therefore, unlike the conventional linear insertion of heat-fusible yarn at the time of adhesion, even if there is shrinkage due to heating, there is almost no ripple to the base fabric and the hem body of the clothing, and not only does it cause a twitch, Since the heat-fusible yarn floats on the wales on the back surface of the base fabric, it has a remarkable effect that a good adhesive effect can be obtained.

In addition, since the heat-fusible yarn is floated on the wales on the back surface of the base cloth, the adhesive tape according to the present invention is 70-
It is possible to heat-treat with hot air at 90 ° C., and the chain stitches of the heat-sealing yarn knitted in a pile shape can be contracted in advance to reduce the contraction during use and further enhance the adhesive effect.

Further, since the heat-fusible yarn is knitted together with the base cloth, the production efficiency is high. Furthermore, when the conventional heat-fusible yarn is inserted in the longitudinal direction, when it is inserted in the longitudinal direction, and when it is inserted in the width direction, 900denier. The thickness of 300 to 600 denier is only about 100 denier, which has the advantage of saving material and reducing the amount of mess.

[Brief description of drawings]

FIG. 1 is a partial external plan view showing an example of an adhesive tape according to the present invention.

FIG. 2 is an exploded view showing an example of a basic structure of the adhesive partial knitting of the tape.

FIG. 3 is a partial view showing a knitted fabric having the basic structure of FIG. 2 and only a part of the heat-sealing yarn is shown.

FIG. 4 is an exploded view showing another embodiment of the basic structure of the adhesive partial knitting of the adhesive tape of the present invention.

FIG. 5 is an exploded view showing still another basic structure example of the adhesive partial knitting of the adhesive tape of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Adhesive tape 2 Base cloth 3 Adhesive part a Ground knitting yarn b Thermal fusion bonding yarn c, d Insertion yarn L _{1 to} L ₅ stitch row

Continuation of the front page (51) Int.Cl. ⁶ Identification code Office reference number FI Technical display location D04D 9/00 D06H 5/00

Claims (3)

[Scope of utility model registration request] 1. A knitting yarn is formed by knitting a knitting yarn by one needle bar of a double Raschel machine, and a knitting yarn is knitted by the other needle bar without exposing the heat fusion yarn to the surface of the base fabric. Then, a knitting loop structure is formed on the back surface side of the base cloth by the above-mentioned heat-bonding yarn, and the knitted loop-shaped heat-bonding thread on the back surface of the base cloth is floated on the back surface side of the base cloth tape. 2. The hemming adhesive tape according to claim 1, wherein a knitting loop structure made of a heat fusion yarn is formed on both sides in the longitudinal direction of the back surface of the belt-shaped base fabric. 3. The adhesive tape for hemming according to claim 1, wherein the knitted loop structure formed by the heat-fusible yarn is formed on one side or a plurality of both sides along the longitudinal direction of the back surface of the belt-like base cloth and in the middle thereof.